PLASMA ATRIAL NATRIURETIC HORMONE IN HYPERTHYROIDISM

In 22 hyperthyroid patients, atrial natriuretic hormone (ANH) levels (71.91 ± 21.03 pg/ml), measured during a 3-h-Holter, were found to be significantly higher (p<0.001) than those in 20 age-matched normal subjects (37.22 ± 8.73 pg/ml). We have demonstrated that the presence of tachiarrhythmias does not influence ANH release.The positive and significant correlation of FT3 with both ANH and heart rate confirms the hypothesis of a direct action of thyroid hormones on ANH release.